EP1350697B1 - Elektronisches Gurtstraffersystem - Google Patents
Elektronisches Gurtstraffersystem Download PDFInfo
- Publication number
- EP1350697B1 EP1350697B1 EP03010244A EP03010244A EP1350697B1 EP 1350697 B1 EP1350697 B1 EP 1350697B1 EP 03010244 A EP03010244 A EP 03010244A EP 03010244 A EP03010244 A EP 03010244A EP 1350697 B1 EP1350697 B1 EP 1350697B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- seat belt
- belt
- tension
- vehicle
- amount
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R22/00—Safety belts or body harnesses in vehicles
- B60R22/34—Belt retractors, e.g. reels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
- B60R21/0132—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to vehicle motion parameters, e.g. to vehicle longitudinal or transversal deceleration or speed value
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R22/00—Safety belts or body harnesses in vehicles
- B60R22/34—Belt retractors, e.g. reels
- B60R22/44—Belt retractors, e.g. reels with means for reducing belt tension during use under normal conditions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R22/00—Safety belts or body harnesses in vehicles
- B60R22/34—Belt retractors, e.g. reels
- B60R22/46—Reels with means to tension the belt in an emergency by forced winding up
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R2021/01204—Actuation parameters of safety arrangents
- B60R2021/01252—Devices other than bags
- B60R2021/01265—Seat belts
- B60R2021/01272—Belt tensioners
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R22/00—Safety belts or body harnesses in vehicles
- B60R22/34—Belt retractors, e.g. reels
- B60R22/44—Belt retractors, e.g. reels with means for reducing belt tension during use under normal conditions
- B60R2022/4473—Belt retractors, e.g. reels with means for reducing belt tension during use under normal conditions using an electric retraction device
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R22/00—Safety belts or body harnesses in vehicles
- B60R22/34—Belt retractors, e.g. reels
- B60R22/46—Reels with means to tension the belt in an emergency by forced winding up
- B60R2022/4685—Reels with means to tension the belt in an emergency by forced winding up with means to adjust or regulate the tensioning force in relation to external parameters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R22/00—Safety belts or body harnesses in vehicles
- B60R22/34—Belt retractors, e.g. reels
- B60R22/46—Reels with means to tension the belt in an emergency by forced winding up
- B60R2022/469—Reels with means to tension the belt in an emergency by forced winding up reusable
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
- B60R21/0134—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to imminent contact with an obstacle, e.g. using radar systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
- B60R21/01512—Passenger detection systems
- B60R21/01544—Passenger detection systems detecting seat belt parameters, e.g. length, tension or height-adjustment
- B60R21/01548—Passenger detection systems detecting seat belt parameters, e.g. length, tension or height-adjustment sensing the amount of belt winded on retractor
Definitions
- the present invention generally relates to a vehicle passenger seat belt system, and more particularly a seat belt system which provides enhanced passenger comfort through electronic belt tension control.
- known seat belt systems typically combine a tensioner and a pretensioner to control seat belt tension.
- Typical belt tensioners operate by exerting a constant belt tension through spring loading.
- the spring biasing is designed to partially remove slack to keep the belt snug against the occupant's chest, while not tensioning the belt hard enough to overcome the slack caused by heavy clothing.
- the belt tension exhibited by typical tensioners tends to be an irritant which may cause some occupants not to wear belts, or to otherwise arrange a manner of tension relief which defeats the function of the chest-restraint belt because of the creation of excessive slack.
- Known pretensioner arrangements have also proven to be unsatisfactory. More specifically, typical seat belt pretensioners are usually in the form of a pyrotechnic device which utilizes an explosive gas generator to activate and power a mechanism which winds up the slack in the lap and chest belts.
- typical seat belt pretensioners have limited ability to reel in belt length, because winding depends on the force and stroke of a piston activated by the pyrotechnic device. Therefore, if as noted above the belt has been extended to relieve irritation, the problems of known belt tensioning systems is compounded by the fact that the pretensioner may be unable to take up sufficient length to afford optimum occupant protection.
- known occupant restraint systems are unable to remind occupants that they are out of optimal position to receive protection from the vehicle occupant restraint system.
- the cycle of tightening of the belt and then releasing it by a predetermined short distance to provide the tensionless comfort position is repeated whenever the occupant either closes the seat belt buckle, shifts the position of the seat by operating the seat release or seat reclining levers, or leans forward beyond the tensionless range, thereby applying tension to the seat belt.
- the motor may be pulsed backward by a capacitor, or other means in combination with a switching circuit which applies a reverse pulse from such capacitor or other means to the motor, following tightening up of the belt.
- the system includes a seat sensor means, a belt tension sensor means, a vehicle speed sensor means for causing re-check of belt tension, and a system operation signal light.
- DE 31 49 573 A1 describes a device for winding a safety belt of vehicles, especially passenger cars, having a winding drum which winds a belt band and is loaded in the winding direction by a winding spring and on which engages an electric motor connectable as a function of the operating state.
- the electric motor is to engage counter to the effect of the winding spring and be arranged so as to be connected only when the winding drum rotates in the unwinding direction.
- an electronic seat belt tensioning system 10 in accordance with the present invention having a motor 12, such as a step motor, coupled to seat belt reel mechanism 14 via a motor shaft 16.
- the seat belt can be a lap belt and/or a shoulder belt.
- a shaft-encoder 18 is coupled to the shaft 16 to provide a quantified output of the amount and direction of shaft rotation for a control processor 20.
- the motor 12 and shaft-encoder 18 obviate the need for a conventional spring-biased tensioner such as used in typical seat belt tensioners.
- shaft encoders are generally known, and that the shaft-encoder 18 can be arranged with two channels or an absolute position read out to provide the necessary directional information and the position counts, and the belt reel mechanism 14 can be designed for easy replacement separate from the motor 12 and shaft-encoder 18 assembly, so that either may be replaced or serviced without affecting the other.
- the control processor 20 receives inputs from the shaft-encoder 18, an external vehicle crash discrimination system 22, a seat belt-coupled switch 24, and an optional external radar system 26.
- the control processor 20 analyzes the input data to control actuation of the motor 12 via a control line 28, thereby controlling the operation of the seat belt reel mechanism 14 to regulate the seat belt tension.
- the overall operation of the controller 20 and the system 10 is more fully described hereinbelow with reference to Fig. 2.
- a locking mechanism 30 In addition to control processor 20, operation of the seat belt reel mechanism 14 is further controlled by a locking mechanism 30 and a reusable pyrotechnic actuator/pretensioner 32.
- the locking mechanism functions as an "anti-pay out" brake which is responsive to a g force activated and/or belt tension activated lock actuator 34 to lock movement of the reel mechanism 14, thereby maintaining the seat belt in its most tensioned position for the duration of an emergency or above threshold g force event.
- the reusable pyrotechnic actuator 32 is configured to augment the tensioning motor 12 during critical emergency/crash situations.
- a more detailed description of a suitable reusable pyrotechnic actuator can be found in commonly owned U.S. Patent No. 5,397,075 to Behr , and incorporated by reference herein.
- the actuator 32 is shown in Fig. 1 as consisting of a mechanical drive mechanism 36 and a replaceable pyrotechnic cartridge 38.
- the system 10 derives power from either a vehicle interior lamp circuit (or other line not controlled by the ignition switch), and/or an ignition line.
- the control processor 20 monitors the shaft-encoder input and the belt-coupled switch 24 input to determine whether the seat belt is unwound and/or unused. If the belt is unwound and/or unused, the processor 20 activates the motor 12 to wind the seat belt back onto the belt reel mechanism 14 at step 112.
- Any existing vehicle circuit which is activated by a vehicle door being opened can be used to initiate a "housekeeping" operation if the vehicle is entered, belts are unwound but unused, and the vehicle is exited without being started.
- the motor 12 provides a nominal winding tension which retracts the belt to the stored position. This pension can be overcome as the occupant unwinds and buckles the belt.
- the shaft-encoder allows the electronic control processor 20 to detect deployment of the belt (step 114) and to count off.the amount of belt paid out during the deployment process at step 116.
- the retracting force remains and the control process 20 counts off the amount of belt retracted.
- the amount of belt paid out can be used by the processor to determine whether an occupant is actually present, which information can be used to supplement a separate external occupant position sensing system.
- the motor 12 is activated or pulsed at a higher power level (step 122) to snug the belt tension. This "snugging" tension would be felt by the occupant as a series of gentle tugs. During these tugs, the winder would continue to wind in the belt while the processor 20 tracks the counts (step 124).
- the winding tension applied by the motor would be substantially reduced to zero (step 128).
- the belt would be in a tensionless state during normal use so that the occupant would not be irritated by continuous belt tension such as exhibited with typical spring-loaded belt retractors.
- the amount of belt paid out is continuously tracked, with several counts of belt pay out being tolerated without restoring belt tension. If minor occupant motions cause additional belt to be unwound over what the system tolerates, the system will wind back the belt to the previously stored position.
- the controller will cause the motor 12 to apply a low level of tensioning (step 130) to re-initialize tensioning, thereby preventing the system from erroneously determining the occurrence of an excess pay out due to improper initial tensioning, such as caused by the occupant leaning back during the tension initialization procedure.
- the processor 20 continues to monitor the belt pay out (step 132), and if more than a few pay out counts are detected (step 134), this information can be advantageously output for use by a separate occupant position sensing system. After a predetermined pay out is exceeded, the retracting tension would be activated at step 136, thereby effectively pretensioning the belt and providing a reminder to the occupant to return to a "normal" seating position.
- the tensioning system 10 will illuminate a warning lamp at step 140, and cause the retracting tension to increase to a higher level than the above described snugging process to attract the attention of the occupant (step 142). Such a higher tensioning would create a "tugging" process on the occupant.
- the system 10 After the system 10 initially determines that the belt has been deployed and buckled at step 210, the system continuously monitors data representative of the vehicle's acceleration at step 212, such as generated by an algorithm based vehicle crash discrimination system.
- the monitored data can be representative of vehicle acceleration, velocity and/or a jerk value (i.e., slope of the acceleration data), and can be generated by an algorithm-based crash discrimination system which utilizes silicon machined accelerometers and/or occupant position sensing apparatus, such as taught in commonly owned U.S. Patent Nos.
- the acceleration (a) data is compared to a first threshold value TH 1 (step 214) and if TH 1 is exceeded, the motor 12 is actuated to apply a high level retracting force to the seat belt (step 216).
- the threshold value TH 1 is approximately equal to a .3g force event, or to otherwise be commensurate with a nonpanic braking situation. If the acceleration data falls below TH 1 , then the processor determines whether the motor 12 has been actuated at step 218. If the motor was actuated, the motor is deactivated to release the high tension on the belt at step 220.
- the tensioning operation is provided with an ability to retract the belt with a higher, maximum level of tension in more critical situations. More specifically, the acceleration data is compared to a second threshold value TH 2 at step 222, wherein TH 2 could be a value substantially approximating a .6g force event or other suitable algorithmic measure. If TH 2 is exceeded, the motor 12 is actuated to apply the motor's maximum possible torque to retract the belt at step 224. Since the processor 20 is continuously monitoring the acceleration data, the level of belt tension being applied is always released any time the acceleration data falls below the appropriate threshold level.
- TH 2 could be a value substantially approximating a .6g force event or other suitable algorithmic measure.
- a major deceleration such as the acceleration data exceeding a third threshold valve TH 3 (step 226) set approximately equal to a level required to close a safing sensor in a crash discrimination system, or at a higher level determined by the crash discrimination algorithm
- the pyrotechnic actuator/pretensioner 32 would be triggered at step 228. This would provide a final tensioning of the belt system prior to a vehicle impact. In accordance with one of the features and advantages of the present invention, this could occur for crash events of less velocity than normally used as a threshold for deploying an air bag, because the pretensioner 32 is reusable with only minor maintenance, i.e., replacement of cartridge 38.
- Triggering at a lower level is particularly advantageous because of the protection provided for lower-level crash events, thereby allowing the seat belt to operate over a longer time period in the case of high speed crash events.
- Lower threshold triggering may also allow the pyrotechnic pretensioner to use a slower gas generation rate than known units, thereby reducing chest slap caused by the belt quickly tensioning.
- the cartridge 28 for the pretensioner 32 is replaced and the belt webbing is visually inspected for stretching.
- the belt webbing is replaced if stretching is noted or if the service warning lamp and diagnostic .message indicates sufficient crash severity. Replacement typically will not be necessary as a result of low-speed deployments.
- Fig. 4 shows a further embodiment of the present invention incorporating an input from the optional object detecting radar system 26 to the system operation as described above in context with Fig. 3.
- the independent, on-board radar system 26 scans the physical surroundings of the vehicle to detect the presence of objects/obstructions, and to otherwise predict impending collisions in response thereto.
- the radar system 26 can be of conventional design and implemented in a manner known to one having ordinary skill in the art since the particulars of the radar system are not critical to the present invention.
- the processor can provide early actuation of the motor 12 to begin retracting the seat belt with a high tension (step 216) a second or two prior to the anticipated crash. If the crash never occurs, such as evidenced by the vehicle acceleration never exceeding any of the threshold values, the belt tension will be released.
- the tugging process provided in response to the radar system not only provides enhanced occupant safety due to early belt tensioning, but also functions as a tactile warning signal to the occupant (i.e., the driver) to thereby potentially assist the driver in implementing defensive driving measures or to otherwise avoid the impending collision.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automotive Seat Belt Assembly (AREA)
Claims (15)
- Verfahren zum Steuern der Zugspannung eines in einem Fahrzeug verwendeten Sicherheitsgurts, welches die Schritte umfasst:- Detektieren des Auslösens des Sicherheitsgurts aus einem aufgerollten Zustand,- Bestimmen der abgerollten Gurtmenge,- Aktivieren eines Aufrollmittels, um den Gurt stufenweise wieder aufzurollen, bis von dem Gurt eine erste vorbestimmte Spannkraft auf den Insassen ausgeübt wird,- Deaktivieren des Aufrollmittels, um die von dem Gurt auf den Insassen ausgeübte Spannkraft im Wesentlichen freizugeben, wodurch der Gurt in einen zugspannungsfreien Zustand versetzt wird,- ständiges Überwachen des Ausgabebetrags des abgerollten Gurts in dessen zugspannungsfreiem Zustand,- Vergleichen der abgerollten Gurtmenge mit einem vorbestimmten Ausgabewert und Erzeugen eines Alarms, wenn sich der Insasse in einer unerwarteten Position befindet, und erneutes Ausüben von Zugspannung auf den Gurt, wenn der überwachte Ausgabebetrag den vorbestimmten Ausgabewert übersteigt.
- Verfahren zum Steuern eines Sicherheitsgurts in einem Fahrzeug nach Anspruch 1, dadurch gekennzeichnet, dass die Zugspannung durch einen mit einem Sicherheitsgurt-Rollenmechanismus (14) wirkverbundenen Elektromotor (12) angelegt wird.
- Verfahren zum Steuern eines Sicherheitsgurts in einem Fahrzeug nach einem der Ansprüche 1 bis 2, dadurch gekennzeichnet, dass der Vorgang des Anlegens einer Zugspannung das Anlegen eines Drehmoments mit dem Elektromotor (12) umfasst, wobei das Drehmoment einen ersten Drehmomentgrenzwert übersteigt.
- Verfahren zum Steuern eines Sicherheitsgurts in einem Fahrzeug nach einem der Ansprüche 1 bis 3, welches weiterhin das Überwachen eines auf das Anlegen von Zugspannung auf den Sicherheitsgurt folgenden Zeitraums und, wenn der Zeitraum einen ersten Zeitraumgrenzwert überschreitet, das Anlegen einer einen zweiten Zugspannungsgrenzwert übersteigenden Zugspannung umfasst, wobei der zweite Zugspannungsgrenzwert den ersten Zugspannungsgrenzwert (130) übersteigt.
- Verfahren zum Steuern eines Sicherheitsgurts in einem Fahrzeug, nach einem der Ansprüche 1 bis 3, welches weiterhin das Überwachen eines Rückziehbetrags des Sicherheitsgurts und, sobald der Rückziehbetrag nicht mehr abnimmt, das Anlegen einer einen zweiten Zugspannungsgrenzwert übersteigenden Zugspannung umfasst, wobei der zweite Zugspannungsgrenzwert den ersten Zugspannungsgrenzwert (136) übersteigt.
- Verfahren zum Steuern eines Sicherheitsgurts in einem Fahrzeug nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass das Gurtband von einem Sicherheitsgurt-Rollenmechanismus (14) bereitgestellt wird, der Vorgang der Ausgabe eines vorbestimmten Gurtbandbetrags auf eine Drehung einer Spule in dem Sicherheitsgurt-Rollenmechanismus (14) anspricht und der Vorgang des Bestimmens des Ausgabebetrags des Gurtbandes (134) das Messen eines auf die Drehung der Spule ansprechenden Winkels umfasst.
- Verfahren zum Steuern eines Sicherheitsgurts in einem Fahrzeug nach einem der Ansprüche 1 bis 6, welches weiterhin das Erzeugen eines Signals umfasst, das anzeigt, ob ein auf den Ausgabebetrag ansprechender Insasse anwesend ist oder nicht.
- Verfahren zum Steuern eines Sicherheitsgurts in einem Fahrzeug nach einem der Ansprüche 1 bis 7, welches weiterhin das Erzeugen eines Signals umfasst, das anzeigt, ob sich ein auf den Ausgabebetrag (138) ansprechender Insasse in einer unerwarteten Position befindet oder nicht.
- Verfahren zum Steuern eines Sicherheitsgurts in einem Fahrzeug nach einem der Ansprüche 1 bis 8, welches weiterhin umfasst:a) Ermöglichen von Gurtbandausgabe als Reaktion auf Insassenbewegung im Fahrzeug (128); undb) erneutes Anlegen von der Zugspannung, wenn der Ausgabebetrag einen Ausgabegrenzwert (130) überschreitet.
- Verfahren zum Steuern eines Sicherheitsgurts in einem Fahrzeug nach Anspruch 9, dadurch gekennzeichnet, dass, wenn der Ausgabebetrag den Ausgabegrenzwert übersteigt, dann die Zugspannung des Sicherheitsgurts (130) zumindest mit Unterbrechungen angehoben wird.
- Verfahren zum Steuern eines Sicherheitsgurts in einem Fahrzeug nach einem der Ansprüche 1 bis 10, welches weiterhin umfasst:a) Speichern des Ausgabebetrags des Gurtbands als Speicherwert zu einem ersten Zeitpunkt (124); undb) Ermöglichen von Gurtbandausgabe als Reaktion auf Insassenbewegung im Fahrzeug (128), wobei der Vorgang der auf Insassenbewegung im Fahrzeug ansprechenden Gurtbandausgabe nach dem ersten Zeitpunkt erfolgt, und, wenn der Ausgabebetrag des Gurtbands bei einem zweiten Zeitpunkt den Speicherwert übersteigt, dann das Rückziehen des Gurtbands, bis der Ausgabebetrag im Wesentlichen gleich dem Speicherwert (136) gleich ist.
- Verfahren zum Steuern eines Sicherheitsgurts in einem Fahrzeug nach einem der Ansprüche 1 bis 11, welches weiterhin vor dem Vorgang des Anlegens der Zugspannung an dem Sicherheitsgurt das Detektieren umfasst, ob der Sicherheitsgurt angelegt (118) ist.
- Sicherheitsgurt-Zugspannungssteuerungssystem zum Steuern der Zugspannung eines in einem Fahrzeug verwendeten Sicherheitsgurts, wobei das Steuerungssystem ausgelegt ist, um:- die Auslösung des Sicherheitsgurts aus einem aufgerollten Zustand zu detektieren,- die abgerollte Gurtmenge zu bestimmen,- ein Aufrollmittel zu aktivieren, um den Gurt stufenweise wieder aufzurollen, bis von dem Gurt eine erste vorbestimmte Spannkraft auf den Insassen ausgeübt wird,- das Aufrollmittel zu deaktivieren, um die von dem Gurt auf den Insassen ausgeübte Spannkraft im Wesentlichen freizugeben, wodurch der Gurt in einen zugspannungsfreien Zustand versetzt wird,- den Ausgabebetrag des abgerollten Gurts in dessen zugspannungsfreiem Zustand ständig zu überwachen,- die abgerollte Gurtmenge mit einem vorbestimmten Ausgabewert zu vergleichen und einen Alarm zu erzeugen, wenn sich der Insasse in einer unerwarteten Position befindet, und erneut Zugspannung auf den Gurt auszuüben, wenn der überwachte Ausgabebetrag den vorbestimmten Ausgabewert übersteigt.
- Sicherheitsgurt-Zugspannungssteuerungssystem nach Anspruch 13, welches weiterhin einen mit einem Steuerungsprozessor (20) wirkverbundenen Sicherheitsgurtschlossschalter (24) umfasst, wobei der Steuerungsprozessor (20) weiterhin dafür ausgelegt ist, den Elektromotor (12) als Reaktion auf ein Signal des Sicherheitsgurtschlossschalters (24) zu steuern.
- Sicherheitsgurt-Zugspannungssteuerungssystem nach Anspruch 13 oder 14, welches weiterhin einen mit dem Sicherheitsgurt-Rollenmechanismus (14) wirkverbundenen Arretiermechanismus (30) umfasst, wobei der Arretiermechanismus (30) dafür ausgelegt ist, das Rückziehen des Sicherheitsgurtbandes von dem Sicherheitsgurt-Rollenmechanismus (14) als Reaktion auf entweder eine Beschleunigung des Fahrzeugs oder eine Zugspannung des Sicherheitsgurts zu verhindern.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06021836A EP1759941A1 (de) | 1995-03-30 | 1996-03-25 | Elektronisches Gurtstraffersystem |
EP06021834A EP1759939A1 (de) | 1995-03-30 | 1996-03-25 | Elektronisches Gurtstraffersystem |
EP06021837A EP1762445A1 (de) | 1995-03-30 | 1996-03-25 | Elektronisches Gurtstraffersystem |
EP06021835A EP1759940A1 (de) | 1995-03-30 | 1996-03-25 | Elektronisches Gurtstraffersystem |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US413601 | 1995-03-30 | ||
US08/413,601 US5558370A (en) | 1995-03-30 | 1995-03-30 | Electronic seat belt tensioning system |
EP96912448A EP0760758A4 (de) | 1995-03-30 | 1996-03-25 | Elektronisches gurtstraffersystem |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96912448A Division EP0760758A4 (de) | 1995-03-30 | 1996-03-25 | Elektronisches gurtstraffersystem |
Related Child Applications (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06021834A Division EP1759939A1 (de) | 1995-03-30 | 1996-03-25 | Elektronisches Gurtstraffersystem |
EP06021835A Division EP1759940A1 (de) | 1995-03-30 | 1996-03-25 | Elektronisches Gurtstraffersystem |
EP06021836A Division EP1759941A1 (de) | 1995-03-30 | 1996-03-25 | Elektronisches Gurtstraffersystem |
EP06021837A Division EP1762445A1 (de) | 1995-03-30 | 1996-03-25 | Elektronisches Gurtstraffersystem |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1350697A2 EP1350697A2 (de) | 2003-10-08 |
EP1350697A3 EP1350697A3 (de) | 2004-07-14 |
EP1350697B1 true EP1350697B1 (de) | 2007-10-31 |
Family
ID=23637883
Family Applications (6)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03010244A Expired - Lifetime EP1350697B1 (de) | 1995-03-30 | 1996-03-25 | Elektronisches Gurtstraffersystem |
EP06021835A Ceased EP1759940A1 (de) | 1995-03-30 | 1996-03-25 | Elektronisches Gurtstraffersystem |
EP06021837A Ceased EP1762445A1 (de) | 1995-03-30 | 1996-03-25 | Elektronisches Gurtstraffersystem |
EP06021836A Ceased EP1759941A1 (de) | 1995-03-30 | 1996-03-25 | Elektronisches Gurtstraffersystem |
EP06021834A Ceased EP1759939A1 (de) | 1995-03-30 | 1996-03-25 | Elektronisches Gurtstraffersystem |
EP96912448A Withdrawn EP0760758A4 (de) | 1995-03-30 | 1996-03-25 | Elektronisches gurtstraffersystem |
Family Applications After (5)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06021835A Ceased EP1759940A1 (de) | 1995-03-30 | 1996-03-25 | Elektronisches Gurtstraffersystem |
EP06021837A Ceased EP1762445A1 (de) | 1995-03-30 | 1996-03-25 | Elektronisches Gurtstraffersystem |
EP06021836A Ceased EP1759941A1 (de) | 1995-03-30 | 1996-03-25 | Elektronisches Gurtstraffersystem |
EP06021834A Ceased EP1759939A1 (de) | 1995-03-30 | 1996-03-25 | Elektronisches Gurtstraffersystem |
EP96912448A Withdrawn EP0760758A4 (de) | 1995-03-30 | 1996-03-25 | Elektronisches gurtstraffersystem |
Country Status (7)
Country | Link |
---|---|
US (1) | US5558370A (de) |
EP (6) | EP1350697B1 (de) |
JP (2) | JPH10501500A (de) |
KR (1) | KR970703250A (de) |
CA (1) | CA2189640A1 (de) |
DE (1) | DE69637309T2 (de) |
WO (1) | WO1996030235A1 (de) |
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- 1996-03-25 EP EP03010244A patent/EP1350697B1/de not_active Expired - Lifetime
- 1996-03-25 EP EP06021835A patent/EP1759940A1/de not_active Ceased
- 1996-03-25 EP EP06021837A patent/EP1762445A1/de not_active Ceased
- 1996-03-25 EP EP06021836A patent/EP1759941A1/de not_active Ceased
- 1996-03-25 JP JP8529550A patent/JPH10501500A/ja active Pending
- 1996-03-25 DE DE69637309T patent/DE69637309T2/de not_active Expired - Lifetime
- 1996-03-25 EP EP06021834A patent/EP1759939A1/de not_active Ceased
- 1996-03-25 EP EP96912448A patent/EP0760758A4/de not_active Withdrawn
- 1996-03-25 WO PCT/US1996/003992 patent/WO1996030235A1/en not_active Application Discontinuation
- 1996-03-25 CA CA002189640A patent/CA2189640A1/en not_active Abandoned
- 1996-03-25 KR KR1019960706791A patent/KR970703250A/ko not_active Application Discontinuation
-
2006
- 2006-11-28 JP JP2006319524A patent/JP2007084069A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
EP1762445A1 (de) | 2007-03-14 |
EP0760758A4 (de) | 2001-03-28 |
DE69637309T2 (de) | 2008-08-07 |
EP1350697A2 (de) | 2003-10-08 |
EP1350697A3 (de) | 2004-07-14 |
WO1996030235A1 (en) | 1996-10-03 |
CA2189640A1 (en) | 1996-10-03 |
EP1759941A1 (de) | 2007-03-07 |
JPH10501500A (ja) | 1998-02-10 |
DE69637309D1 (de) | 2007-12-13 |
KR970703250A (ko) | 1997-07-03 |
EP1759939A1 (de) | 2007-03-07 |
JP2007084069A (ja) | 2007-04-05 |
US5558370A (en) | 1996-09-24 |
EP1759940A1 (de) | 2007-03-07 |
EP0760758A1 (de) | 1997-03-12 |
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